>>>If you're creating curDetail in the same area that curItemList uses, it would destroy curItemList.
>>>
>>
>>That's what's weird about this - the curItemList cursor is still there and it still has data in it.
>>
>>>Or if you somehow changed DS.
>>>
>>
>>I'm not seeing that either.
>>
>>Weird...
>
>Hard to say, then. Are you sure you called correct grid's method? <g>
>
>Anyway, would using approach suggested by Ed and Vladimir solve the problem?

I tried it, but parent grid is still effected (it's not completely lost as before, but it bounces around; definitely not something I could leave in a production app.). It's also a lot slower than my existing method.

I wasn't so much looking for a work around (I have it working already) as much as an explanation as to what's happening.